In recent years, due to various factors such as the environment and air quality, the incidence of rice gill disease has gradually increased, which has a great impact on the quality of rice, and in severe cases can also lead to a reduction in the yield of rice, according to grub disease. Causes of the disease, put forward the following prevention and control measures.
1. Improve the quality of seedlings: Putian should select the areas with medium fertility, sunny shelter, convenient drainage and irrigation, and high ground.
2. Selected varieties of cereals: Seed Valley should be pure, clean, robust, and highly mature. Pre-soaking seeds for 1 to 2 days to reduce seed moisture content
3, to improve soaking germination technology: soaking soaked, germination process to make the relationship between moisture, temperature, oxygen three relations.
4, master the sowing quality: According to the characteristics of the species, determine the appropriate sowing date, seeding rate and seedling age.
5, scientific management of water: buds to maintain moist noodles, can not be over the morning water, in order to ensure root aerobic and prevent shoot buddies.
6, rational fertilization: Putian Shizu base fertilizer, top dressing a small number of times, should increase the ratio of phosphorus and potassium fertilizers.
7. Chemical control 1 Soil disinfection: Green Heng No. 1 is used for the disinfection of soils in dry nursery school, aquatic nursery school and plastic floppy disk nursery, and is one of the best agents for the control of rot. The specific method of disinfection: First, Putian flat well, after sowing, per square meter with green hen No. 1 1 to 1.5 grams or green hen No. 1 0.5 grams plus green No. 2 No. 2 to 3 grams, with sieving of the wet fine soil 10-20 kilograms are mixed well and evenly spread on the paddy field or seedling plate after sowing for cover soil.
2 For the old Putian or irrigation sewage in Putian, it is advisable to spray 800 to 1000 times of the green hengheng No. 2 water before onset or at the onset of the disease, and to simultaneously treat and prevent rice seedling leaf blast, rice sheath blight and rice bakan disease. Occurrence and popularity.
The above is the prevention and control method for rice gill disease. Scientific and reasonable management will allow rice to grow better and bring better economic income to everyone.
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